baber/WOPTO huggingface dataset:
Patent DE-2544760-A1 (DE)
Title: Control system for electrosensitive recording instruments - has integrated circuit changeover switch for each stylus polarised supply
Inventor: SCHIEKEL MANFRED DIPL PHYS
IPC: G01D15/06
Filed: 1975-10-07
Abstract: The control system for electro-sensitive recorders consists of a d.c. polarising source whose output is switched to recording stylii via integrated circuit switches. The elecro-sensitive recording paper is fed at constant speed under a flat pressure strip which serves to connect the surface of the sheet to the negative pole of the supply. The negative pole is also connected to one position of commutator switches associated with the stylii. The switches are in the form of integrated circuits. Each stylus of the comb arrangement is connected to the positive pole when in the 'write' condition. Otherwise, it is connected to the negative pole.
Patent DE-2551167-A1 (DE)
Title: Pallet shelving with automatic alignment of pallets - has guide members fitted to upright columns in association with engagement holes
Inventor: JUERGENS WALTER DR ING
IPC: A47B57/10
Filed: 1975-11-14
Abstract: The pallet shelving system has adjustable base shelves and frames and includes rear columns (3) which are fitted with automatic guide elements (5). When mounting the shelves, as soon as they approach the holes into which they should engage, they run onto the guide members so that they can be pushed automatically into the holes without the need for a difficult lining-up procedure. As soon as the pallet almost engages the hole with its rear support elements, it hits the guide element and is guided into the hole.
Patent DE-2553148-A1 (DE)
Title: Line amplifier with reduced average power consumption - uses capacitors to supply short term peaks for e.g. auxiliary amplifiers
Inventor: RINGELHAAN OTMAR DIPL ING
IPC: H04B3/36
Filed: 1975-11-26
Abstract: The line amplifier has its average power consumption reduced by using capacitors to supply short-term power for the brief gain peaks of the amplifier. Other advantages are the increased power output from the same supply or the increased lifetime of components achieved by reducing their loading and therefore their temperature. The second transistor of the main patient is replaced by three transistors (T3, R4, T5), two zener diodes (D1, D2) and two capacitors (C6, C7).
Patent DE-2553484-A1 (DE)
Title: Magnetically actuated lock for savings boxes - has lock in plastics baseplate connected by snap action to housing
Inventor: RIEGRAF GERHARD
IPC: E05B47/00
Filed: 1975-11-28
Abstract: The magnetically actuated lock is used in money saving boxes. The magnetic operating key is inserted into a depression on the outer face of the baseplate of the housing. The lock has spring loaded catch with a magnetisable component for opening against spring force. The lock housing and baseplate are connected by a simple and economical means without disturbing the magnetic lock operation. The lock housing and the lock faceplate can be made from injection mouldable plastics. These injection moulded components are connected, together by integrally moulded flexible projections (24, 25) and seats (23, 26).
Patent DE-2553873-A1 (DE)
Title: Cushion or mattress for upholstered chair or couch - with resilient core with coconut fibre substrate and soft foam sheath
Inventor: UPHOFF HEINRICH J ING GRAD
IPC: A47C27/12
Filed: 1975-11-29
Abstract: Cushion or mattress for upholstered chair or couch comprises a resilient core with a coconut fibre substrate, surrounded on all sides by a bag of jute fibre or other fabric with its lower surface resting on a porous foam panel. A soft foam sheath e.g. polyurethane borders the foam panel, and encompasses all of the remainder of the outer surface of the jute fibre bag. In an example the jute fibre bag has specific wt. of 290 -365 g/m2 and the soft foam sheath becomes compressed with it or in it to provide an airtight, high-strength wear-resistant bag wall. Air displaced by compression of the cushion escapes through the coconut fibre substrate, the unfoamed bag portion and the porous foam panel which is bonded to the soft foam sheath at its edges only.
Patent DE-2555971-A1 (DE)
Title: Railway vehicle two-axled bogie frame - has spring housing with hinged bridge engaging ring mounting on bracket
Inventor: SCHAEFER HEROLD
IPC: B61F3/04
Filed: 1975-12-12
Abstract: The two-axles bogie frame has no cradle and is mounted on railway rolling-stock. It has a motor driving both axles, and the wagon body is supported on both sides of the bogie framework by a rubber spring on the longitudinal girders. The bell-shaped spring housing (4) has a U-shaped bridge (6) hinged to it, carrying a sliding plate (8) on top of it. Its hinging is offset downwards relative to the centre of gravity of the rubber spring (5). An inwards-facing, down-bent arm (9) is attached to the bridge, engaging the outer ring (10) of the ring mounting (11), while the inner ring (13) is connected to a vertical bracket (15) forming part of the wagon body (1). Rotational movement of the mounting ring is attenuated, and it is mounted lower than the axles, so as to provide a lower and more accessible floor level.
Patent DE-2557588-A1 (DE)
Title: Screw operated vehicle lifting jack - has protrusions on arm pressing against column when folded out of use to prevent rattling
Inventor: HAFNER FRANZ
IPC: B66F3/16
Filed: 1975-12-20
Abstract: The vehicle lifting jack has a U-section column on a foot accommodating a crank-operated screwed spindle actuating a swing arm via a nut. The rear end of the arm has sides by which it pivots on the nut, these sides fitting round or in the column. One or more protrusions (46) are provided on the components moving in relation to each other when the arm swings, i.e. on arm and column (10) or nut (32). When the arm is swung down into the rest position these bear under pressure against the mating face of the adjacent part (22,24). They can increase in thickness in a direction inclined upwards and outwards from the lower edge of the arm, when this is in the working position. The design avoids rattling when the jack is stowed.
Patent DE-2602691-A1 (DE)
Title: Small length change measuring device - uses phase change of optical wave with change in glass fibre waveguide length to change voltage
Inventor: CASPERS FRIEDHELM DIPL-ING
IPC: G01B11/16
Filed: 1976-01-24
Abstract: A measuring device for small changes in length is designed for use in place of e.g. strain gauges and in reactor and h.v. technology. The change in length of an optical dielectric conductor produces a change in the phase angle of an electromagnetic wave guided by the conductor and this change in phase is converted into a voltage by a frequency or phase demodulator. The conductor is pref. a glass fibre or strip conductor, and pref. a measuring wave is transmitted outside and a reference wave inside the conductor. Pref. phase demodulation is effected by means of a compensating circuit comprising a phase detector, a comparator, a control amplifier and a linearly controlled modulator.
Patent DE-2603273-A1 (DE)
Title: Porous silicon nitride impregnated with dopants - used in diffusion heat treatment to dope semiconductor substrates
Inventor: KRAFT WOLFGANG
IPC: H01L21/22
Filed: 1976-01-29
Abstract: Dopant atoms are diffused into the surface of a semi-conductor substrate from a sintered dopant source, where the substrate and the source are in contact and heated to the same temp. in a reactor. Sintered source is Si3N4, with pores contg. >=1 cpd. (I) of >=1 dopant so that the desired concn. of dopant atoms is obtd. in the surface of the substrate. (I) is pref. dissolved in a solvent into which the Si3N4 is immersed so the soln. enters the pores, evapn. by heating then removes the solvent leaving (I) in the pores. Solvent may contain a second cpd. (II) and after immersing the Si3N4 and evapn. to remove the solvent, heat is used to convert (II) into (I). The solvent may also contain a substance which, when heated, provides the desired dopant conc. in the substrate. Method is e.g. for diffusion of B, or Sb, and/or As, and/or P into Si substrates. Several dopants can be simultaneously diffused into a substrate from one source which does not distort at diffusion temps.
Patent DE-2605078-A1 (DE)
Title: Positive weft regulator for loom in region of fluted roller - with reduced number of change gears in multi-step gear mechanism
Inventor: BROEKER GEORG
IPC: D03D49/20
Filed: 1976-02-10
Abstract: Positive weft regulator in the form of a multi-step gear mechanism for loom in region of fluted roller comprises a septuple gear stage which meshes with a gear roller and which is mounted loosely on a shaft allowing it as desired to mesh with the septuple gear stage above it be means of an intermediate gear. The intermediate gear is suspended in a frame which is mounted loosely on a shfat and can be connected to the septuple gear stages by sliding displacement. The second septuple gear stage is mounted fixedly on its shaft. Instead of a number of different change gears for the different weft densitities, no spare change gears need to be kept in stock. By changing only one gear, 49 different weft densities can be obtd.
Patent DE-2606112-A1 (DE)
Title: Moccasin type shoe prodn. method - uses S-shaped cut-outs and separating cuts finally glued over to close shoe's upper part
Inventor: GERHARD HELMUT
IPC: A43B3/14
Filed: 1976-02-16
Abstract: Prodn. method for the upper part of a mocassin type shoe with leather upper which, sock-like, completely encloses the foot. An 'S' shaped cut out is attached between the front section welt (1) and the front sheet inset (2) located on the insole. An 'S' shaped separating cut is made in the rear section of the insole for producing the rear section of the shoe without folds. After completing the whole upper part of the shoe, these cuts are glued over thereby closing the complete upper part of the shoe. The separating cuts are curved and kept close to the welted edge of the shoe.
Patent DE-2608193-A1 (DE)
Title: Electric units fixing assembly with support rail - makes use of U-shaped bracket to engage rail and spring locking device
Inventor: HORNER ALBERT
IPC: H02B1/052
Filed: 1976-02-27
Abstract: The fixing assembly is used for fastening electrical units to supports. It has a U-shaped bracket attached to the unit whose hooked ends engage beneath the support rail. The assembly consists solely of the U-bracket (1) and a handle (g). The U-bracket has a spring locking device (5) with a locking element (6) corresponding to two 90 deg.-displaced elements (11) on the handle. These elements form retaining links that hold the handle in position both in the locked and unlocked conditions.
Patent DE-2630976-A1 (DE)
Title: Window or door alarm - causes unwanted entry to pivot lever to trigger bell alarm and simultaneously discharge cartridge
Inventor: MAYER KARL
IPC: G08B13/02
Filed: 1976-07-09
Abstract: An alarm for use on doors and windows provides triggering of a warning bell coupled with discharge of a cartridge. A spring loaded piston (9, 12) is retained in the stand by position by a shoulder (22) on a pivotted (15) lever (18). The lever is biased into position by a spring (29). When the alarm is triggered by movement (P) of the lever, the piston is released and a pin (10) discharges a cartridge (4). Simultaneously the lever moves to close electrical contacts (30) to activate the bell alarm (33).
Patent DE-2637743-A1 (DE)
Title: Centrifugal flow continuous grinding method - moves opposite end of tank in arcuate path without rotation, engaging grinding agent with inner peripheral lining
Inventor: OHNO IETATSU
IPC: B24B31/02
Filed: 1976-08-21
Abstract: The grinding method lines the inside surface of a cylindrical or polygonal tank of any material and a proper length with any of such materials as a rubber, synthetic resin, brush, fibre and paper pulp. The tank is held at one end in a frame (4) provided on a mount (2) by a universal bearing (2). The other hand end is attached to an arm frame (5) fitted at both ends with driving pin shafts (6). A crank arm (8) is borne by each of two bearings (7) on the amount (3). A centrifugal motion is generated on the inner peripheral surface of the tank and the materials flow to the other end to be ground. A motor (12) fitted to the mount (3) can have the number of revolutions freely varied by a speed change gear (13). The chain or belt (16) is connected between a gear or pulley (14) fitted to the shaft of the motor (12) and a driving gear or pulley (15) fitted to the shaft of one of the crank arms (8).
Patent DE-2640407-A1 (DE)
Title: Subscriber circuits for automatic exchanges - have switches provided to prevent double testing of subscriber circuits and include selectors
Inventor: DIRR JOSEF ING GRAD
IPC: H04Q3/00
Filed: 1976-09-08
Abstract: A test circuit is built through a wire of call selectors or line selectors to a subscriber circuit to find whether it is free. It is closed if the subscriber circuit is free (29t, 30r, d, CA, 25u1). Switch (CA) are provided on this side, which become active when the subscriber circuit is free and close a further circuit preventing double testing of the call or line selectors. Blocking switches for the subscriber circuit are provided in the same or a following circuit (T), so that different clock pulses are allocated to each call or line selector, or to each group of such selectors, through which simultaneous testing of the same subscriber circuit is possible. Clock pulses form direct (23ca, Jcvy1) or indirect (2ca, Jcvy1) circuits pass through the subscriber circuit. Engagement switches in the call or line selector, and blocking switches in the subscriber circuit become operative. The latter pref. make the test circuit conducting.
Patent DE-2642548-A1 (DE)
Title: Photographic camera with light protector flap - opening just before shutter opening and returning after exposure by transmission member linked to shutter release
Inventor: SIMON HORST
IPC: G03B11/04
Filed: 1976-09-22
Abstract: Photographic camera comprises several slidable or pivotable lenses which can be moved selectively into the light path, and a shutter (5) between the lenses. In the light path between the film plane and the side of the lens facing towards the film plane is a light protector flap (1) which is pivoted away immediately before opening of the shutter in accordance with the release mechanism (7), and pivoted back against after exposure. The flap is pref. pivoted away by the release mechanism and by a transmission member (4) between it and the release mechanism, locked in the open position, and unlocked by a closure member of the shutter. The arrangement completely excludes light.
Patent DE-2645701-A1 (DE)
Title: Adjustable plug connector for photoconductive fibres - has photoconducting parts of fibres brought into optical central position using eccentric sleeves
Inventor: PETER EUGEN ING GRAD
IPC: G02B6/38
Filed: 1976-10-09
Abstract: The photoconductive fibres are each held in a holder and the holders are each arranged in a tube resting in a mounting. The position of the holders in the tube is radially variable and the end position of the holders can be locked. The mounting can have a vee-shaped longitudinal milled notch and a force acting in the direction of the vee. The mounting can consist of a hollow body having a cylindrical bore. The inside diameter of the hollow body corresponds to the outside dia. of the tube. The mounting can consist of an axially slotted hollow body with at least two longitudinal slots tube (2).
Patent DE-2659436-A1 (DE)
Title: Monocrystalline silicon strip for solar cells - mass produced by continuous laser melting of moving polycrystalline strip
Inventor: BAGHDADI ASLAN
IPC: H01L31/18
Filed: 1976-12-29
Abstract: The crystal structure of a semiconductor layer is modified. A heat source melts a zone of the layer in an atmos. contg. O2, while the layer moves w.r.t. the heat source. The zone then solidifies when it is moved away from the heat source, to produce an improved crystal structure. The layer is pref. polycrystalline Si, travelling vertically in air past a defocussed laser beam which produces monocrystalline Si, esp. by continuous melting and solidification of a zone in an atmos. contg. min. 4 vol.% of an oxidising gas, esp. air, or an atmos. contg. 10-30 vol,% O2. Exceptionally large quantities of silicon strip can be reliably produced at very low cost, and used e.g. for converting solar energy into electricity.
Patent DE-2701749-A1 (DE)
Title: Sleeveless blood pressure measuring appts. - has two plates moved downwards against forearm to compress air between them
Inventor: BAHRAMI BAHRAM DR MED
IPC: A61B5/021
Filed: 1977-01-18
Abstract: The semi-automatic sleeveless quick-action blood-pressure measuring appts. comprises a housing, into the bottom part of which the forearm is inserted with the palm of the hand upwards. Two plates are then moved downwards in the housing by a motor, and when the lower one bears against the forearm, compression starts of the air between them. The pressure generated is converted into electric current and optical and acoustic signals and indicated in analogue or digital manner, or is mechanically transmitted to a pressure gauge for indication on a scale. To give a better grip on the forearm, both plates are oblong, as is the chamber between them. The pulse rate can also be taken.
Patent DE-2704197-A1 (DE)
Title: Catalysts for ethylene oxide prepn. - comprising supported silver promoted with two or more alkali metals
Inventor: MROSS WOLF DIETER DIPL CHEM DR
IPC: C07D301/10
Filed: 1977-02-02
Abstract: Catalysts for ethylene oxide prepn. from ethylene and O2 comprise Ag and alkali metals or their cpds. deposited on a support. The catalysts contain (a) 0.1-2 atom % Na and (b) either 0.05-0.35 atom % K, 0.003-0.25 atom % Rb, 0.0005-0.2 atom % Cs or a corresp. amt. of a mixt. thereof. All percentages are based on the Ag content. The Ag content is pref. 2-12 (esp. 5-10) wt.% based on the wt. of the catalyst. The catalysts are pref. prepd. by impregnating the support with an aq. soln. of an Ag complex salt (e.g. an Ag-amine carboxylate) and suitable alkali metal cpds. (e.g. hydroxides), steaming the resulting composite until the Ag cpd. decomposes, and calcining the product at 100-400 degrees C to constant wt. Other standard methods can also be used. The catalysts have higher activity and selectivity than conventional Ag catalysts promoted with alkali(ne earth) metals, and/or have a longer life.
Patent DE-2711559-A1 (DE)
Title: Probe head design for material hardness testing appts. - gives linear relationship between probe load and sample penetration using parabolic section tip
Inventor: SCHIRRA DIETMAR
IPC: G01N3/42
Filed: 1977-03-17
Abstract: A probe head design for a material hardness testing appts. is such that the shape of the probe tip has a linear relationship between the probe load and the sample penetration results. The probe tip consists of a tip of parabolic section (8) with a segment further back of conical section (10) such that a tangential interface between the two segments is assured. An alternative form has two rear segments of conical section, each with a different cone angle (10).
Patent DE-2716991-A1 (DE)
Title: Protective electromagnetic relay with auxiliary switches - has spring arm and hooked finger holding each switch to relay casing
Inventor: GWETANSKI GEORGI DIPL ING
IPC: H01H50/54
Filed: 1977-04-18
Abstract: The electromagnetic relay has auxiliary switches each of which is provided with hooked fingers that engage behind projections on the casing. A spring arm (40) is located on the top of each auxiliary switch (28) and projects beyond the upper edge of the casing. The overlap (D) is such that when the casing's cover (12) is attached the arm is deformed and its spring action holds the switch into the recess and thereby presses the hooked finger (36) behind the projection (38).
Patent DE-2718359-A1 (DE)
Title: Load switching system for transformer - achieves uniform contact surface wear and has moving contacts on swivel bracket engaging fixed contacts on circle
Inventor: SHIMIZU HIROMASA
IPC: H01H9/00
Filed: 1977-04-25
Abstract: A load switch is used for a transformer in which the contact surfaces between the stationary and moving contacts are modified to provide a more even distribution of the stresses and consequential wear. The fixed contacts are mounted at an angle relative to each other around the arc of a circle. There are a large number of moving contacts associated with each of the stationary contacts. The moving contacts are actuated by a drive shaft along the arc of the circle. Each of the moving contacts is fitted to a swivel bracket (24). The bracket can move radially relative to the drive shaft (51). The contact pressure on each of the contact is provided by a spring. This is achieved via a roller (56) which travels along a curve surface of the swivel bracket.
Patent DE-2722075-A1 (DE)
Title: Borehole auger drill for column foundations - has drive and clamp and hydraulic actuator for downwards movement
Inventor: BLASCHKE KURT
IPC: E21B4/18
Filed: 1977-05-16
Abstract: The auger boring tool produces column foundations in the ground. The machine drive unit has a motor and clamp which is lowered into the borehole with a tube for absorbing the reaction torque of the motor. The clamp can be moved axially in the housing within limited working stroke in the housing. The borer is also able to bore hard or rocky ground. Between the housing holding the clamp and drive motor and the housing for the screw borer is arranged a double acting hydraulic cylinder. This pushes the housing downwards when the clamp is applied.
Patent DE-2732258-A1 (DE)
Title: Reversible digital data code conversion into storage data - involves input and output groups connected through logic circuits or directly
Inventor: RASEK EDUARD DIPL ING
IPC: H03M7/00
Filed: 1977-07-16
Abstract: The conversion system consists of an input and an output group for a data signal. The number of inputs and outputs differ in accordance with the conversion ratio, and there is a logic circuit connecting the two groups and consisting of AND and OR circuits, by which several inputs of the input group are linked to an output of the output group. ]The input group consists for data storage of four parallel inputs (1, 2, 4, 8), and the output group of six parallel outputs (A-F). The ratio of inputs to outputs is reversed for reproduction of stored data. Each output of the output group consists of the output of an OR circuit, whose inputs are connected through AND circuits, partly through OR circuits and partly directly to the whole of the input group. Code convertor inputs and outputs are partly inverting.
Patent DE-2736339-A1 (DE)
Title: Electronic controller with switch=on overshoot suppression - uses level dependent dual response characteristic operational amplifier circuit
Inventor: SCHUSTER OTTO ING GRAD
IPC: G05B5/01
Filed: 1977-08-12
Abstract: The electronic controller whose response characteristics contains an I-component has a starting circuit contg. an operational amplifier in the signal circuit with a capacitor in its feedback circuit in parallel with a voltage limiter. It is designed to avoid switch-on saturation by displaying a defined time response below an accurately defined threshold and a second response above the threshold. The second characteristic prevents overshoot of the desired value caused by saturation for both positive and negative control errors. The voltage limiting circuit consists of opposed diodes each of whose conductivity increases sharply above a defined threshold voltage.
Patent DE-2737823-A1 (DE)
Title: Joint for chair seat wood slats - has interlocking regular sawtooth serrations cut on edges prior to gluing
Inventor: JANKO MIHELIC
IPC: B27F1/00
Filed: 1977-08-22
Abstract: The connection for wood is for chair seats. Use is made of identically shaped profile pieces (12) of the contact surfaces of the elements (10, 11) to be connected, with regular saw-tooth zig-zagged edges mutually turned through 180 deg. They are glued together with the serrations interlocking for close fitting. this is suitable for pieces of wood of any thickness, and can be used for other furniture or for staircases.